Model 4299-2 Installation Instructions
Installation
The following procedure outlines the installation of the rack mount kit.
WARNING
Make sure the instrument that is being installed is in a powered down state with all
cables unplugged. Failure to install an instrument in a discharged state may cause an
electrical shock or death.
CAUTION
To prevent damaging heat build-up, and thus ensure specified performance, adhere to
the following rack-mounting precautions:
•
Keep the rear exhaust vent and at least one side vent free of any obstructions. Even
partial blockage may impair proper cooling.
•
DO NOT position a device adjacent to the Model 260x that forces air (heated or
unheated) into or onto the Model 260x’s cooling vents or surfaces. This additional airflow
may compromise accuracy performance.
•
Allow at least 1U of space at the top and bottom of the Model 260x (see Note below).
•
Make sure there is adequate air flow around at least one side of
the instrument. Adequate air flow ensures proper cooling. Adequate airflow provides air
temperatures that are within about one inch of the Model 260x surfaces to remain within
specified limits under all operating conditions.
•
DO NOT rack mount high dissipation equipment adjacent to the Model 260x that could
cause excessive heating to occur. The specified ambient temperature must be
maintained around the surfaces of the Model 260x to maintain specified accuracies.
NOTE
1U is a standard vertical spacing and is equal to 1.75 inches. Typical distance between the
mounting holes on rack rails is 0.125” (1/8”). Add vented panel S500-304 (not included) above
units and Blanking Panel (PNL-10x) below when installing 26xx.
When determining placement within any rack, make sure to adhere to the Caution above. If the rack has only
convection cooling, use the following as general guidelines to properly design equipment placement:
•
Place the hottest equipment (for example, the power supply), at the top of the rack.
•
Place precision equipment (such as the Model 260x) as low as possible in the rack (where temperatures
are
cooler).
•
Add space panels below the Model 260x to help ensure adequate air flow.
2
PA-909 Rev. C / May 2007
